Sawcut joints are filled with a flexible material for two reasons, to keep incompressible dirt out of the gap to prevent buckling, and to provide a bridge across the gap. This bridge reduces the impact of forklift and pallet jack wheels as they roll across the joint. Repeated wheel impact can crack the concrete on either side of the joint.
Joint filling material must be the right combination of:
- Elasticity to allow expansion and contraction.
- Hardness, to provide the bridge for the wheels on carts, forklifts, machinery or vehicles.
- Adhesion to stick to the walls of the slab inside the joint.
For example, sawcut joints that are not filled will see a significant deterioration of the ninety degree angle where the sawcut meets the concrete slab edge with the use of forklift and heavy duty traffic due to the impact.
Filling the sawcut joint creates a seamless transition from slab to slab over the cut that will increase the life of your slab in your facility.
In terms of lifecycle costs, you can expect to pay 3-4 times the cost to repair a sawcut joint due to deterioration against the cost to fill the joints when you move into your facility.
Not having a flush joint filler in your sawcuts can create issues on your concrete slab over a period of time.
If you move into a facility that has worn joint filler, have them replaced. The old joint filler is removed mechanically and replaced to maintain a smooth transition across the sawcut joint gap between slabs.
The quality products we use are manufactured in the USA and are used by major developers. We also sell the products we use directly to Warhorse Materials Inc. trained installers if you are looking for an applicator also.